Statements (18)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
marine chronometer
|
| gptkbp:countryOfOrigin |
gptkb:United_Kingdom
|
| gptkbp:displayType |
analog
|
| https://www.w3.org/2000/01/rdf-schema#label |
H3 marine chronometer
|
| gptkbp:inventedBy |
gptkb:John_Harrison
|
| gptkbp:location |
gptkb:Royal_Observatory,_Greenwich
|
| gptkbp:material |
brass
|
| gptkbp:mechanismOfAction |
spring-driven
|
| gptkbp:notableFeature |
bimetallic strip for temperature compensation
caged roller bearings remontoire mechanism |
| gptkbp:predecessor |
gptkb:H2_marine_chronometer
|
| gptkbp:purpose |
solving the longitude problem
|
| gptkbp:significance |
important step in development of accurate marine timekeeping
|
| gptkbp:successor |
gptkb:H4_marine_chronometer
|
| gptkbp:yearCompleted |
1759
|
| gptkbp:bfsParent |
gptkb:John_Harrison
|
| gptkbp:bfsLayer |
6
|